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<?php function cast($val, $key) { if (is_numeric($val)) { return $val + 0; } //return 0; return $val; } $arr = ['stri33ng123', 84, 76.7, '45.6', '67.5e45', '56,9']; var_dump($arr); array_walk($arr , 'cast'); var_dump($arr);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/oHSjL
function name:  (null)
number of ops:  12
compiled vars:  !0 = $arr
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   13     0  E >   ASSIGN                                                   !0, <array>
   14     1        INIT_FCALL                                               'var_dump'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                                 
   16     4        INIT_FCALL                                               'array_walk'
          5        SEND_REF                                                 !0
          6        SEND_VAL                                                 'cast'
          7        DO_ICALL                                                 
   17     8        INIT_FCALL                                               'var_dump'
          9        SEND_VAR                                                 !0
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Function cast:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 8
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/oHSjL
function name:  cast
number of ops:  10
compiled vars:  !0 = $val, !1 = $key
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
          1        RECV                                             !1      
    5     2        INIT_FCALL                                               'is_numeric'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $2      
          5      > JMPZ                                                     $2, ->8
    6     6    >   ADD                                              ~3      !0, 0
          7      > RETURN                                                   ~3
   10     8    > > RETURN                                                   !0
   11     9*     > RETURN                                                   null

End of function cast

Generated using Vulcan Logic Dumper, using php 8.0.0


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